Method for registering structures in an image of a photolithography mask with corresponding structures in a reference image

DE102025102252A1Undetermined Publication Date: 2026-08-06CARL ZEISS SMT GMBH
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Patent Information

Authority / Receiving Office
DE · DE
Patent Type
Applications
Current Assignee / Owner
CARL ZEISS SMT GMBH
Filing Date
2025-01-22
Publication Date
2026-08-06

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Abstract

The invention relates to a method (26) for registering structures in an image (22) of a photolithography mask (14), comprising: providing an image (22) of a photolithography mask (14) that is captured by an optical system (10, 10'), wherein the noise distribution of the image (22) varies depending on at least one property of the image (22), the photolithography mask (14) or the optical system (10, 10'); and registering structures in a transformation of the image (22) with corresponding structures in a reference image (64) of the photolithography mask (14), wherein the variation of the noise distribution in the transformed image (28) is reduced.
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Citation Information

Patent Citations

  • Computer-implemented method, computer-readable medium, computer program product, and corresponding systems for simulating electromagnetic near fields or aerial images of photolithography masks

    DE102022135019A1

  • Method for registering structures in at least one image of a photolithography mask, obtained by an optical system with a resolution limit, with corresponding structures in a reference image

    DE102025102245A1

  • Computer implemented method, computer-readable medium, computer program product and corresponding systems for generating aerial images of photolithography masks

    WO2024141484A1

  • DE102024139922A1